Mouth cancer Q

I know asking about cancer survival rates can be a bit like how long is a piece of string, but a relative has just been diagnosed with mouth cancer and I was wondering what the rough survival statistics were?

I am not sure how early/late stage his cancer at, so if anyone can provide statistics for both, that would be very helpful.

Also, how difficult and painful is the treatment and how long does it take?

I felt like pitting Cancer, it won’t leave my family alone, but I guess in this case I should be pitting cigarettes.

How 'bout this: